Improvement in earth-scrapers



M NEWTON.

improvement in Earth Scrapers.

No. 122,639, Patented Jan. 9, 1872.

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Parana @rrrcn.

KEN TLAND, INDIANA.

IMPROVEMENT IN EARTH-SCRAPERS.

Specification forming part of Letters Patent No. 122,639, dated January9, 1872.

Specification describing certain Improvements in EarthScrapers, inventedby MADI- soN NEWTON, of Kentland, in the county of Newton and State ofIndiana.

The nature of my invention consists in such a combination, with thescoop and the notched beam of a pivoted detent manipulated by thehandles, that the scoop may be locked to the beam and liberatedtherefrom by means of the handles, without any intervening mechanism; italso consists in the adjustability of the atpermit of changing theinclination or pitch of the scoop with relation to the beam.

Figure 1 is a perspective view. Fig. 2 is a sectional elevation.

The sameletters of reference are used inboth figures in the designationof identical parts.

The scoop A carries upon-its back two fixed standards, A A which,extending beyond its upper edge, are connected together by a stayrod, AIt is also provided with a slotted guide, 13, through which the rear endof the arched beam 0 passes, a pin, 0, being screwed transversely in andnear the extreme rear end of the beam to prevent its ever being drawnout of the guide. The arched beam is further connected with thescoop bythe draftrods D D, which are pivoted to the beam near its front end, atd, and diverging thence to the rear, are respectively hinged at thesides of the scoop to the projecting ends of the rod E. The latter ispassed horizontally through holes a a in the standards A A, and in orderto provide for the adjustment of the pitch of the scoop at this point anumber of holes, a, are boredthrough thestand ards, one above another,as clearly shown in Fig. 2, to change the location of the rod E untilthe scoop obtains the desired inclination with reference to the line ofdraft. The beam, which is bent into the arched form, best seen inFig. 2,so that it may be out of theway of clods of earth which may be scrapedup by the scoop, has a series of notches, c c, in its lower edge for thereception of the detent F. This detent is a metallic head provided witha slot through which the beam passes, and with flanges f f to which aresecured the bars G G; the latter, diverging from the head F to the rear,are pivoted upon the rod A of the scoop, and constructed at theirextreme rear ends with handles H H, by which the bars Gr G can beconveniently turned on the rod A to the extent the beam 0 may permit.

In operation the detent F is locked to the beam at one or another of itsnotches, according to the pitch it may be most desirable to give to thescoop the machine being drawn forward and the scoop cutting into theearth cause the detent to be pushed with force against the straightvertical edge of the notch in the beam, and to bind thereon so tightlythat the two will be kept locked together without any exertion by theoperator. When the scoop is filled, and it is desired to dump the load,the operator pushes or draws the handles up a little, which will turnthe detent down and liberate it from the notch in the beam; there beingnew no resistance offered to the upper portion of the scoop it willimmediately turn on the rod E, and, throwing the load forward, ride overit; or, by suitable manipulation, it may be made to distribute it. Inthis operation the detent slides on the beam forward, its own weightcausing it to rest with the top edge of the slot on the upper edge ofthe beam, so that it will not engage with any one of the notchestherein. To right the scoop for another operation, the operator turns itupon the rod E by pulling the handles rearward, and when the detent isopposite the proper notch in the beam he bears down on the handles, andthus locks the detent to the beam.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the scoop A and notched beam 0, of the detentF, which is manipulated by means of the handles, substantially as setforth.

2. The combination, with the scoop A, of the adjustablerod E, draft-rodsD D, and beam G, substantially as and for the purpose specified.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

Witnesses: MADISON NEWTON.

ANDREW HALL, E. LITTELL URMSTON. (51)

